<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片视图区-->
    <el-card>
      <el-row :gutter="20">
        <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList" class="input-with-select">
          <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
        </el-input>
        <el-button type="primary" @click="goAddPage">添加商品</el-button>
      </el-row>
      <!--table表格区-->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格" width="95px"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="70px"></el-table-column>
        <el-table-column prop="add_time" label="创建时间" width="180px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="small"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="small" @click="removeGoods(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!--分页区域-->
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[5, 10, 15, 20]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  name: "Goods",
  data() {
    return {
      //商品列表数据
      goodsList: [],
      //分页的查询条件
      queryInfo: {
        query: '', //查询关键字，与文本输入框做数据的绑定
        pagenum: 1,
        pagesize: 10
      },
      //商品列表数据总条数
      total: 0,
      //搜索框的文本内容
      textInput: '',

    }
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    async getGoodsList() {
      const { data : res } = await this.$http.get('goods',{params : this.queryInfo});
      if(res.meta.status !== 200) return this.$message.error('获取列表数据失败');
      // console.log(res.data);
      this.goodsList = res.data.goods;
      this.total = res.data.total;
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodsList();
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getGoodsList();
    },
    //点击'删除'按钮，根据Id值删除对应的商品
    async removeGoods(goodsId) {
      const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if(confirmResult === 'cancel') return this.$message.info('已取消删除');
      const { data : res } = await this.$http.delete('goods/'+goodsId);
      if(res.meta.status !== 200) return this.$message.error('删除商品失败');
      this.getGoodsList();
      this.$message.success('删除商品成功');
    },
    //通过编程式导航跳转到商品添加页面
    goAddPage() {
      this.$router.push('/goods/add');
    }
  }

}
</script>

<style lang="less" scoped>
  .input-with-select {
    width: 350px;
    margin: 0 20px 15px 0;
  }

</style>
